diff options
Diffstat (limited to 'sound/oss/kahlua.c')
| -rw-r--r-- | sound/oss/kahlua.c | 229 |
1 files changed, 0 insertions, 229 deletions
diff --git a/sound/oss/kahlua.c b/sound/oss/kahlua.c deleted file mode 100644 index c4b0434c7604..000000000000 --- a/sound/oss/kahlua.c +++ /dev/null @@ -1,229 +0,0 @@ -/* - * Initialisation code for Cyrix/NatSemi VSA1 softaudio - * - * (C) Copyright 2003 Red Hat Inc <alan@lxorguk.ukuu.org.uk> - * - * XpressAudio(tm) is used on the Cyrix MediaGX (now NatSemi Geode) systems. - * The older version (VSA1) provides fairly good soundblaster emulation - * although there are a couple of bugs: large DMA buffers break record, - * and the MPU event handling seems suspect. VSA2 allows the native driver - * to control the AC97 audio engine directly and requires a different driver. - * - * Thanks to National Semiconductor for providing the needed information - * on the XpressAudio(tm) internals. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2, or (at your option) any - * later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * TO DO: - * Investigate whether we can portably support Cognac (5520) in the - * same manner. - */ - -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/slab.h> - -#include "sound_config.h" - -#include "sb.h" - -/* - * Read a soundblaster compatible mixer register. - * In this case we are actually reading an SMI trap - * not real hardware. - */ - -static u8 mixer_read(unsigned long io, u8 reg) -{ - outb(reg, io + 4); - udelay(20); - reg = inb(io + 5); - udelay(20); - return reg; -} - -static int probe_one(struct pci_dev *pdev, const struct pci_device_id *ent) -{ - struct address_info *hw_config; - unsigned long base; - void __iomem *mem; - unsigned long io; - u16 map; - u8 irq, dma8, dma16; - int oldquiet; - extern int sb_be_quiet; - - base = pci_resource_start(pdev, 0); - if(base == 0UL) - return 1; - - mem = ioremap(base, 128); - if (!mem) - return 1; - map = readw(mem + 0x18); /* Read the SMI enables */ - iounmap(mem); - - /* Map bits - 0:1 * 0x20 + 0x200 = sb base - 2 sb enable - 3 adlib enable - 5 MPU enable 0x330 - 6 MPU enable 0x300 - - The other bits may be used internally so must be masked */ - - io = 0x220 + 0x20 * (map & 3); - - if(map & (1<<2)) - printk(KERN_INFO "kahlua: XpressAudio at 0x%lx\n", io); - else - return 1; - - if(map & (1<<5)) - printk(KERN_INFO "kahlua: MPU at 0x300\n"); - else if(map & (1<<6)) - printk(KERN_INFO "kahlua: MPU at 0x330\n"); - - irq = mixer_read(io, 0x80) & 0x0F; - dma8 = mixer_read(io, 0x81); - - // printk("IRQ=%x MAP=%x DMA=%x\n", irq, map, dma8); - - if(dma8 & 0x20) - dma16 = 5; - else if(dma8 & 0x40) - dma16 = 6; - else if(dma8 & 0x80) - dma16 = 7; - else - { - printk(KERN_ERR "kahlua: No 16bit DMA enabled.\n"); - return 1; - } - - if(dma8 & 0x01) - dma8 = 0; - else if(dma8 & 0x02) - dma8 = 1; - else if(dma8 & 0x08) - dma8 = 3; - else - { - printk(KERN_ERR "kahlua: No 8bit DMA enabled.\n"); - return 1; - } - - if(irq & 1) - irq = 9; - else if(irq & 2) - irq = 5; - else if(irq & 4) - irq = 7; - else if(irq & 8) - irq = 10; - else - { - printk(KERN_ERR "kahlua: SB IRQ not set.\n"); - return 1; - } - - printk(KERN_INFO "kahlua: XpressAudio on IRQ %d, DMA %d, %d\n", - irq, dma8, dma16); - - hw_config = kzalloc(sizeof(struct address_info), GFP_KERNEL); - if(hw_config == NULL) - { - printk(KERN_ERR "kahlua: out of memory.\n"); - return 1; - } - - pci_set_drvdata(pdev, hw_config); - - hw_config->io_base = io; - hw_config->irq = irq; - hw_config->dma = dma8; - hw_config->dma2 = dma16; - hw_config->name = "Cyrix XpressAudio"; - hw_config->driver_use_1 = SB_NO_MIDI | SB_PCI_IRQ; - - if (!request_region(io, 16, "soundblaster")) - goto err_out_free; - - if(sb_dsp_detect(hw_config, 0, 0, NULL)==0) - { - printk(KERN_ERR "kahlua: audio not responding.\n"); - release_region(io, 16); - goto err_out_free; - } - - oldquiet = sb_be_quiet; - sb_be_quiet = 1; - if(sb_dsp_init(hw_config, THIS_MODULE)) - { - sb_be_quiet = oldquiet; - goto err_out_free; - } - sb_be_quiet = oldquiet; - - return 0; - -err_out_free: - kfree(hw_config); - return 1; -} - -static void remove_one(struct pci_dev *pdev) -{ - struct address_info *hw_config = pci_get_drvdata(pdev); - sb_dsp_unload(hw_config, 0); - kfree(hw_config); -} - -MODULE_AUTHOR("Alan Cox"); -MODULE_DESCRIPTION("Kahlua VSA1 PCI Audio"); -MODULE_LICENSE("GPL"); - -/* - * 5530 only. The 5510/5520 decode is different. - */ - -static const struct pci_device_id id_tbl[] = { - { PCI_VDEVICE(CYRIX, PCI_DEVICE_ID_CYRIX_5530_AUDIO), 0 }, - { } -}; - -MODULE_DEVICE_TABLE(pci, id_tbl); - -static struct pci_driver kahlua_driver = { - .name = "kahlua", - .id_table = id_tbl, - .probe = probe_one, - .remove = remove_one, -}; - - -static int __init kahlua_init_module(void) -{ - printk(KERN_INFO "Cyrix Kahlua VSA1 XpressAudio support (c) Copyright 2003 Red Hat Inc\n"); - return pci_register_driver(&kahlua_driver); -} - -static void kahlua_cleanup_module(void) -{ - pci_unregister_driver(&kahlua_driver); -} - - -module_init(kahlua_init_module); -module_exit(kahlua_cleanup_module); - |